Supercharging System Research Articles

COMBINED SUPERCHARGING SYSTEM OF DOMESTIC HIGH-PRESSURE TWO-STROKE SPECIAL PURPOSE DIESEL

Modern trends in engine construction are inextricably linked to the improvement of power units by modernizing existing models. The introduction of a forced to 1100 kW diesel engine of the DN type allows to increase the efficiency and bring the equipment in line with modern requirements in a short time and with lower costs. The key method of improvement is the modernization of the supercharging system, which increases power without increasing the dimensions and weight of the engine, as well as improves technical and economic characteristics. A combined supercharging system with a low-pressure turbocharger (LPT) and a high-pressure drive compressor (HPT) is proposed, which work together or separately depending on the operating mode. The use of a mathematical model of the workflow made it possible to carry out a computational and experimental study of the proposed system in the modes of maximum power and maximum torque, confirming its high efficiency. The use of modern technologies and materials, as well as the introduction of innovative design and modeling methods, allows to create more reliable and durable power units. Modernization of the supercharging system is one of the most important directions in the development of modern engine construction, which allows to achieve an increase in the level of specific power, improvement of fuel economy and environmental characteristics of engines by ensuring optimal conditions for their operation in various operating conditions and in a wide range of operating modes. The paper presents the research results of the proposed two-stage supercharging scheme of the DN type diesel engine, which makes it possible to achieve a power of 1100 kW. It is shown that this scheme has advantages over the traditional one, as it makes it possible to provide a higher boost pressure in a wider range of crankshaft RPM, as well as to reduce power consumption from the crankshaft to drive the compressor at modes close to the nominal ones. These factors collectively lead to a significant improvement in the characteristics of the diesel due to the introduction of the two-stage supercharging system.

Energy Analysis of a Novel Turbo-Compound System for Mild Hybridization of a Gasoline Engine

Efficient and low-polluting mobility is a major demand in all countries. Hybrid electric vehicles have already shown to be suitable to respond to this need, being a reliable alternative to conventional cars, at least in urban environments. Nevertheless, such vehicles present a yet unexplored potential. In this paper, we will investigate how the powertrain efficiency may possibly benefit, in an integrated drivetrain for a hybrid electric vehicle, based on a turbocharged gasoline engine, of an innovative supercharging system. The compressor and turbine will be mechanically decoupled so as to independently optimize their operation, avoiding turbo lag and maximizing energy recovery by completely eliminating the waste-gate valve. This, in turns, requires changing the turbine so as to have a flattest possible efficiency/load curve. Therefore, an ad-hoc designed turbine will be implemented in the decoupled configuration, to be used to drive an electrical generator and produce electrical energy for charging the battery. This study presents a preliminary assessment of the potential of a turbo-compounded system for a 1L turbocharged gasoline engine for a small city car. To this aim, a one-dimensional dynamic model of the engine has been built in GT-Suite and has been calibrated and validated by means of experimental data obtained on a dynamometer, both in steady state and dynamic conditions. In particular, the model has been calibrated by means of experimental data obtained in stationary conditions and its robustness has then been verified through experimental data obtained under transient conditions. The model also includes data retrieved from the characterization of the existing turbine and compressor, while a new performance map for the turbine has been designed to better exploit the potential of the components’ decoupling. Results include the estimation of energy recovery potential of such a solution. Under the implementation of a straightforward control strategy, which runs both compressor and turbine at the same speed, the system is able to achieve a 60.57% increase in energy recovered from the exhaust gasses in the turbine. Afterwards, an attempt was made to limit the minimum turbine speed to 45000 rpm and simultaneously decrease the instantaneous speed by 3000 rpm compared to the compressor, attaining a further increase of 1.7% in the energy recovered by the turbine.

The study of fuel accumulation in the oil of a gasoline engine with direct fuel injection

BACKGROUND: The worldwide powertrain engineering tendency is reduction of mass and dimension properties of an engine with simultaneous increase of its specific power and power-to-weight ratio. It can be achieved with compression ratio increase, engine cycle improvement, implementation of supercharging system and direct fuel injection. With the direct injection systems implementation, the issue of fuel accumulation in oil became relevant.
 AIMS: The article addresses general issues related to fuel accumulation in the motor oil.
 METHODS: Analysis of the published data addressing this issue.
 RESULTS: The reasons of fuel entry into oil were formulated, the possible acceptable limits of fuel concentration in oil were defined, and the data of vehicle fleet observation performed by specialists during several years was given.
 CONCLUSIONS: There is rather considerable range of opinions and recommendations regarding acceptable fuel concentration in oil. Therefore, it may be concluded that the value of fuel concentration in itself makes little difference, and, in order to define the maximal acceptable level of fuel concentration in oil, it is reasonable to carry out studies of determination acceptable limits of particular motor oil properties, primarily viscosity.

Numerical Investigation of the Intercooler Performance of Aircraft Piston Engines Under the Influence of High Altitude and Cruise Mode

Abstract Multistage supercharging is an effective way to solve the problems of low volumetric efficiency and combustion deterioration of piston engines under high altitude conditions. As a critical component of the supercharger system, the high-altitude intercooler performance is challenged to meet the heavy heat load caused by the large boosting ratio. The purpose of this study was to add more knowledge on the high-altitude intercooler performance to the limited existing studies. The intercooler experimental tests were conducted in a high-altitude simulation system, allowing for simultaneous pressure and temperature reductions. A 3D computational fluid dynamics (CFD) model was developed and validated against experimental results to investigate the intercooler performance, including the heat exchange and pressure drop characteristics. The results indicated that the atmospheric conditions and cruising speed significantly affected the intercooler performance. For example, the weighting of the effects of the temperature difference and air density on heat exchange performance varied with altitude. The altitude of 11 km was the turning point of the heat transfer rate because it is the junction of the troposphere and stratosphere. Based on this finding, this study further investigated whether a higher cruise speed could compensate for heat transfer deterioration with increasing altitude, more consistent with actual flight conditions. The simulation results showed that the variation of cruise speed directly affected the effectiveness of the heat exchanger, resulting in a different trend with altitude. Furthermore, the heat exchange of the intercooler fluctuated less with altitude under variable speed conditions. Overall, these findings support more fundamental research on high-altitude intercoolers, which may benefit the design and optimization of high-altitude engines and turbocharged systems.

Modeling and optimal operation of hybrid wave energy and PV system feeding supercharging stations based on golden jackal optimal control strategy

This paper provides a novel application for the Archimedes wave swing (AWS) device that converts the sea waves into electrical energy using a linear permanent magnet synchronous generator (LPMSG), which is connected to a rectifier that extracts the most significant energy from sea waves and reduces the stator losses. The generator's power combined with a photovoltaic (PV) system provides a total of 250 kW, sufficient for feeding a V3 Tesla Supercharging system, which is currently the latest and most advanced electric vehicle (EV) charging technology. The hybrid system is connected to a DC link, its voltage is stabilized using a supercapacitor energy storage system, and the output is provided to a buck converter that reduces the voltage for the Tesla Supercharger. The control system comprises seven proportional-integral (PI) controllers with four anti-wind back-calculation coefficients to improve transient stability. The PI gains are optimized using the Golden Jackal Optimization Algorithm (GJOA), and the system stability is evaluated by applying different disturbances like a sudden variation in the DC load, temporary DC short circuit, and connection of the EV in various modes such as a grid to vehicle and vehicle to grid modes. The results obtained by the GJOA are compared with the Particle Swarm Optimization and the hybrid Augmented Grey Wolf Optimizer and Cuckoo Search algorithms. Finally, hybrid renewable energy systems can efficiently be employed in EV supercharging stations as validated with the strategy proposed in this work.

Numerical optimization of supercharging and combustion on a two-stroke compression ignition aircraft engine

Two-Stroke (2S) Compression Ignition (CI) engines have been used in aviation since World War II, for their excellent fuel efficiency and lightweight construction. In a modern light aircraft, these advantages still remain, along with the capability to run on jet fuel instead of gasoline. However, the design of these engines must be deeply revised, in order to incorporate the recent technologies, and it must be optimized with the support of CAE tools. The paper presents a CFD optimization of a turbocharged 2S CI 5.6 L flat-six aircraft engine developed by CMD. The scavenging system is of the Uniflow type, with exhaust poppet valves and a set of piston-controlled ports along the cylinder liner. Two mechanical superchargers are serially connected to the turbochargers. The crankshaft can be directly coupled to the propeller, thanks to its excellent balance and the relatively low maximum engine speed (2600 rpm). Differently from previous papers published on the same engine, the current study is focused on two crucial design topics: the optimization of the supercharging system and of the injection strategy. A customized version of KIVA-3V is used for the 3D-CFD cylinder analyses, while a commercial 1D-CFD code is employed to model the whole engine. The study is supported by a comprehensive experimental campaign, that permitted the accurate calibration of the numerical models. In comparison to any Four-Stroke delivering the same maximum power (400 HP at 2600 rpm, sea level), the analyzed engine is very light (about 220 kg), and efficient (211 g/kWh at typical cruise conditions). Despite the high performance, peak cylinder pressure and turbine inlet temperature at sea level are relatively low: 125 bar, 850 K. At rated power (360 HP@2400 rpm, sea level) combustion is complete and smoke-less, thanks to the optimization of the injection strategy, supported by the previous CFD analysis. The engine can operate at altitudes as high as 5500 m (18,000 feet), still delivering 270 HP at 2400 rpm, without relevant reduction of fuel efficiency. The key for the performance at high altitudes is the choice of the turbocharger considering the compressor choke limit easly reachable at high altitudes.

ANALYSIS OF EXISTING SUPERCHARGING SYSTEMS AND PERSPECTIVES OF APPLICATION OF ELECTRIC DRIVE IN SUPERCHARGING UNITS

The article analyzes modern solutions for increasing engine power by improving the air supply system. Single-stage and multi-stage pressurization schemes with gas, mechanical and combined connection in several variations are considered, their positive and negative sides for modern mechanical engineering are revealed.
 The simplest and most common is the turbocharging system, in which the turbine rotates only under the exhaust gases and this drives the compressor. Consideration should be given to the features of the working process of two-stroke diesel engines. At low speeds, there is not enough energy from the exhaust gases to drive the turbocharger. The second option is schemes in which the turbine and compressor shafts are connected to the engine shaft using a mechanical transmission. Another scheme is also possible in which the compressor and turbine can be separately connected to the crankshaft. Such solutions ensure synchronous operation of the compressor and reciprocating engine in all modes, improve the gas exchange process, improve performance in transient conditions and improve starting properties. One successful solution for two-stroke diesel engines is the development of a combined supercharging system with an intercooler, which are already considered multi-stage systems. They are generally divided into two schemes, in the first scheme the drive compressor is a high pressure degree, and the turbocharger is low pressure, the second scheme is vice versa. It is the first option that is more often used for two-stroke diesel engines, since the power consumption for driving the compressor is less, which causes a slightly higher engine efficiency. Injectivity is close to engines with conventional gas turbine supercharging.
 Over the past 7 years, the approach to improving the pressurization system has undergone some changes, Electric Boosting Systems for civilian vehicles have appeared. One of the first companies were Audi, Daimler, Land Rover, which began to equip their vehicles with electric supercharging. Currently, such large companies as BorgWarner and Garrett can be considered ambassadors of this technology. For example, AMG, together with Garrett, developed and introduced serial electric turbocharging. The problem of using an electric drive in boost systems has been lately gaining more publicity, it is already possible to conclude that there is great potential and the possibility of using such developments for domestic two-stroke diesel engines.

Aerodynamic investigation on compact variable compressor for vehicular turbochargers

Abstract In order to install a turbocharger which has wider operating range and higher boost pressure than a current supercharging system to an internal combustion engine (ICE) and a hybrid vehicle (HV), one development focus lies on a variable trim compressor (VTC) which can change passage area upstream a compressor wheel. In this paper, a new variable geometry device which was developed from the VTC mechanism proposed by Fujiwara et al. in 2018 is studied. The experimental result confirmed the performance enhancement associated with the design concept change and the improvement of trim actuation. In addition, the effect of the throat area ratio as design parameter in the new device on performance was numerically analysed. As a result, the optimal design value of passage area size in the VTC was around 60% and the passage area change position should be placed as close as possible to the compressor wheel.

EGR Operation Influence On The Marine Engine Efficiency

In the work presented, the focus is on the influence of the EGR operation on the engine performance factors. Basic principles of the EGR operation are considered and experiment with electronically controlled engine is carried out on a Kongsberg marine simulator. The influence of the EGR on the efficiency, specific fuel consumption and CO2 emissions is evaluated. Recommendations for the performance adjustment of the supercharging system are stated.

APPLICATION OF EXERGETIC METHOD FOR EVALUATION OF PROCESS PERFECTION IN DIESEL ENGINE SUPERCHARGING SYSTEM

One of the most important trends of the modern combat vehicles is increasing their mobility for the security of the crew and for fast movement in different types of terrain. Compliance with these criteria is ensured by the engine of the armored vehicle. The competitiveness of domestic engines for armored vehicles should be ensured by the creation of new structures, their constant modernization and further improvement of performance. One of such engines is a forced diesel engine 6DN12/2x12 with a capacity of 1100 kW. In order to improve its performance and increase the level of forcing, it is proposed to improve the air supply system of the engine. Evaluating the effectiveness of the system can identify nodes that need changing design parameters. Therefore, such a qualitative analysis also indicates the feasibility and the possibility of further modernization of the system design. The qualitative analysis of the turbocharger is carried out on the basis of exergy method, which allows identifying sources of energy losses in the system design and determines the degree of perfection of processes. The application of the exergy method is due to the purpose of determining the reserves to improve the efficiency of the turbocharger elements, the magnitude of the supplied exergy and exergy efficiency in the nodes of the air supply system. According to the method, an exergy scheme of the supercharging system was constructed, on the basis of which the energy-exergy balance of each compressor unit was derived. The results of the analysis allowed to determine the parameters of the flow of the working fluid in the characteristic sections of the compressor and turbine and exergetic efficiency of the supercharging system. The calculated data obtained by exergetic analysis provide an estimate of the distribution of energy losses and allow determining the areas for further improvement of the air supply system and providing an opportunity to choose such design parameters that achieve the most effective improvement of the system.

Forced Induction Technologies in an IC Engine: A Review

This study has been undertaken to show the performance enhancement of engines using different Forced induction technologies. Forced induction technology like turbocharging and supercharging can enhance the performance of an internal combustion engine by compressing inlet air charge, allowing full engine power to be produced efficiently. As the fuel economy and greenhouse emission standards are projected to be far more stringent globally, the use of a Forced induction engine in passenger cars and light-duty trucks has become an inevitable trend within the automotive industry. A turbocharger system can effectively improve the power and torque of an engine, but turbo hysteresis exists. A mechanical supercharging system can boost at low speed, but the efficiency is lower. An electric supercharger can effectively improve the intake air at the early stage of accelerated working conditions, however, an electric supercharger will consume the engine power. The addition of Forced induction technologies to an IC engine helps with the scope of downsizing it. This review brings forward all the aspects of Forced induction technologies

Battery supercharging system in electrical vehicles using photovoltaic panels

In this project, a system was designed for charging batteries in electric vehicles using photovoltaic panels. Low cost of operation, cheap construction and simple user interface were among the main criteria taken into account.
 Each energy source was carefully selected and modules were used so that they could power the microcontroller and charge the energy storage source. The solution was patented [1].
 This article is a part of a project related to the design of digital control devices with electric drives carried out at the UWM. The control system solutions developed at UWM have been published in the book {15}.

ВИБІР ТА ОБҐРУНТУВАННЯ СХЕМИ НАДДУВУ ДИЗЕЛЯ АВІАЦІЙНОГО ПРИЗНАЧЕННЯ

The article provides the substantiation of the rational scheme of the boost system of the aircraft diesel engine KhADI-100A to ensure its altitude from the point of view of the lowest losses of the effective engine power. A method is proposed for assessing the power loss of an aircraft diesel engine depending on the flight altitude. Three variants of the supercharging system are considered: with one free turbocharger; parallel drive compressor and free turbocharger; sequential drive compressor and free turbocharger. As a result of the computational study, it was shown that in the case of using one free turbocharger at an altitude of h > 1500 m, the normal operating process of a diesel engine cannot be realized, since in this case, the excess air ratio falls below the critical value for a diesel engine α <1.4. Even if a constant excess air ratio is maintained, the effective engine power, with one free turbocharger, decreases by about 6 ... 11 kW per 1000 m with an increase in flight altitude. In schemes with a driving compressor, the quality of the fuel-air mixture will not change with altitude, and the power losses for their drive are insignificant in comparison - within 1 ... 2 kW per 1000 m of lifting height and can be compensated by increasing the cycle fuel supply without losing the quality of the working process. As a result of the computational study, it was concluded that the most rational from the point of view of the least power consumption is the scheme with a sequential drive compressor and a free turbocharger, the power consumption for the compressor drive at an altitude of 5000 m is 1.4 kW less than in the scheme with a parallel drive compressor and is the maximum value of 8.5 kW. The use of an electrically driven compressor is proposed since in this case the unit gains control flexibility to select the optimal operating mode and the possibility of using alternative energy sources for the drive electric generator (solar batteries, accumulators, thermoelectric generators, etc.).

Effect of supercharger system on power enhancement of hydrogen-fueled spark-ignition engine under low-load condition

Hydrogen energy has received much attention in recent years due to its reliability and non-carbon products. However, it has been found that the backfire phenomenon plays a major part in limiting power and torque in the hydrogen internal combustion engine (H2ICE). Much research in recent years has considered turbocharger as a useful method to improve the power of H2ICE. Although the result of boosting a system with turbocharger became enhanced when compared to the natural aspiration system. Unfortunately, there were unsolved problems in exhaust backpressure and pumping losses that hindering the practical utilisation of H2ICE. This paper investigated the experiment of 2.4 L supercharged port fuel injection engine at 2000 rpm. Air excess ratio (lambda) was varied from stoichiometric to 2.8 by adjusting the boosting amount in supercharger, and throttling of the air. The hydrogen injection amount were maintained the same with turbocharger condition; spark advance timing was set at maximum brake torque. It was observed that by boosting engine with supercharger, the lower pumping loss and higher indicated mean pressure had been obtained when compared to turbocharger boosted engine under low-load condition. However, some additional power required for supercharging that lowers output of the engine.

Analysis of a novel energy-efficient system with a bidirectional supercharger for forging hydraulic press

The mismatch between the installed power and required power is the main cause of the high energy dissipation and low energy efficiency of hydraulic presses. Based on the operating principle of a high-pressure water jet, this study proposes a novel energy-saving method to solve this mismatch. In the proposed method, an energy-efficient supercharging system composed of a bidirectional supercharger, recovery accumulator, and special control system was integrated into a hydraulic system for the first time. The pressure and kinetic energy of the hydraulic oil from the supercharging system were significantly higher than those of the conventional power units. Subsequently, the supercharging system was used to energize the hydraulic press together with the conventional drive units, thereby realizing high-power load operation with low installed power. A configuration and control strategy for the supercharging system were constructed. Based on this configuration, a recovery accumulator was adopted to store the hydraulic energy as well as pressure and flow pulsations generated by the supercharger at the low-load and no-load stages. Moreover, a servo supercharging system was proposed to realize a high-precision power supply according to the load profiles at the high-load stage. Finally, the proposed system was applied to a 32 MN forging press as a case study. The results indicated that the energy dissipation and installed power were reduced by 48% and 20%, respectively.

EFFECT OF THERMAL INERTIA ON DIESEL ENGINES TRANSIENT PERFORMANCE

Transient operation of turbocharged diesel engines is affected by the thermal inertia of the cylinder parts, intake and exhaust manifolds. Because of thermal inertia the temperature of engine parts at steady operation fluctuates during the operating cycle near their average values in a relatively small range, but during transient operation it takes some time to warm or cool the engine parts. Thermal inertia is expressed in changes in fuel combustion, in-cylinder heat transfer and indicated efficiency of the cycle, and increase of general inertia of gas-turbine supercharging system, which determines the necessity to take into account this phenomenon when modeling unsteady engine operation. The conductance-capacitance model was proposed for online internal combustion engines operating cycle simulation tool Blitz-PRO to consider thermal inertia during engine’s transient process. The idea is to consider the heat capacity of engine parts during the heat transfer process, so they accumulate energy at warming and release it at cooling. Combined with equations of heat transfer and thermal conductivity it enables to calculate the change in the average temperatures during engine transient and consider the changes in the overall heat transfer process. The proposed method was tested by comparing the experimental data, obtained from the dyno test-bench based on modified KamAZ-740.10 diesel engine, and the results of modeling in Blitz-PRO. During the experiment, the instantaneous brake torque of the engine, crankshaft and turbocharger speed, supercharged air pressure and the pressure at the turbine’s inlet as well as the intake air mass flow were automatically measured during engine running. Calculations were executed for two setups: with the thermal inertia consideration and without it. As a result, it was found that the most influenced by thermal inertia is the supercharging system: by the 8th second of transient process the calculated supercharged air pressure without thermal inertia consideration is 19% greater, comparing to experimental data. The turbocharger’s rotor speed, intake air flow are influenced greatly too. Suggested method of thermal inertia assessment helps to provide much more accurate simulation of engine transient operation, especially in terms of turbocharging system behavior as it is shown.

Performance improvement of fuel cell systems based on turbine design and supercharging system matching

Turbines can recover energy from the exhaust streams of proton exchange membrane fuel cells to reduce the parasitic power consumption of compressors. This helps improve the fuel cell system’s efficiency. A preliminary design method of turbine rotors is described in this study, which can effectively reduce the dependence on empirical parameters and avoid iterative computations. The aerodynamic performance of the turbine was investigated using the Reynolds-averaged Navier–Stokes (RANS) equations with computational fluid dynamics (CFD) tools. The numerical simulation and experiment showed good agreement. Meanwhile, the numerical results of the single channel of the turbine rotor were in good agreement with the preliminary design values. This indicated that the design method is reliable for the design of the turbines used in fuel cell vehicles. Further investigations were performed to match turbines with fuel cell stacks. It is shown that it is not possible to fully recover the exhaust energy using only a fixed geometry turbine over the whole operating range of fuel cell vehicles. Therefore, three different supercharging system configurations were investigated to explore the potential for reducing parasitic power consumption. A turbine with a variable nozzle could fully recover the exhaust energy. The fuel cell system’s efficiency could be increased by 7.32% at 30% rated power and by 4.85% at rated power. However, using a variable nozzle would greatly increase the cost and complexity of the supercharging system.

High-altitude performance and improvement methods of poppet valves 2-stroke aircraft diesel engine

Poppet valves 2-stroke (PV2S) diesel engine is promising to overcome the problems of low combustion performance and deteriorated emissions of conventional 2-stroke aircraft engines due to the lubricant leakage into cylinders. However, the high-altitude gas exchange and power performance of PV2S diesel engine with complex supercharging systems have been rarely studied, and the corresponding experimental methods are expected to be improved. To address these issues, a reformative experimental platform and one-dimensional simulation model are proposed to accurately predict the high-altitude performance and explore the improvement methods of a PV2S aircraft diesel engine with a combined supercharging system. Tracer gas method and pressure-based mass flow acquisition method are innovatively conducted in the platform to measure the gas exchange characteristics, which are validated with satisfactory accuracy and feasibility. The results indicate the performance deterioration of the PV2S engine is more severe than conventional 2-stroke engines due to the additional decrease of trapping efficiency. As the altitude increases from sea level to 8000 m, delivery ratio, trapping efficiency, charging efficiency and available brake power decrease by 22%, 27%, 43% and 61% respectively. Adjustments of valve overlap duration, as well as exhaust manifold length and chamber volume, can effectively improve the charging efficiency and brake power, which increase by 36.73% and 30.38% at 8000 m altitude, whereas at sea level they decrease 5.68% and 8.39% respectively. The study reveals the feasible application of PV2S diesel engine in aircraft propulsion and facilitates its use at high altitudes.

Effect analysis of vacuum prepressing reinforcement of soft soil foundation

The supercharged vacuum pre-pressure method is to increase the supercharge system on the basis of the direct vacuum pre-pressure, and to increase the pressure in the middle of the vacuum process, thus achieving the goal of saving efficiency and increasing construction costs. Based on the reinforcement project of a blowout foundation in Lianyungang, this paper analyses the process of soil surface subsidence, pour water pressure, stratified subsidence and groundwater level when the soft foundation is reinforced by supercharged vacuum prepressing method by field test method. The paper will provide data support for future actual projects.

Preliminary study of wind supercharging solar chimney power plant combined with seawater desalination by indirect condensation freshwater production

In this study, the physical and mathematical models of wind supercharging solar chimney power plant combined with seawater desalination by indirect condensation freshwater production (WSSCPPSDIC) were proposed. The numerical simulation was carried out for analyzing the flow field characteristics of WSSCPPSDIC. Subsequently, a comparison of solar chimney power plant (SCPP), solar chimney power plant combined with seawater desalination by indirect condensation freshwater production (SCPPSDIC) and WSSCPPSDIC was conducted in different rotational speed. It was found that the ingenious and special condenser combined in the integrated system could preheat the seawater and realize the full utilization of the latent heat of condensation released by water vapor. Besides, the negative pressure generated by the wind supercharging system installed at chimney exit remarkably increased the electricity production. Generally, WSSCPPSDIC could effectively improve the freshwater output and the solar energy comprehensive utilization efficiency, specifically 9.805 ton/h and 16.73%.