Abstract

Temporary structures are being extensively used by emergency services (rescue, disaster relief, military response units), and other end-users requiring temporary mobile off-grid energy solutions for different purposes (event organization, vacation homes, summer camps, etc.). Yet energy systems for these purposes largely remain fossil-based (such as diesel generators). Although such energy systems are inexpensive, they are carbon intensive and inefficient. This study presents a methodology of simulating temporary shelter with access to an energy supply system through a mobile energy unit with renewable (PV) power supply systems to ensure on-site electricity production, as well as heating/cooling and ventilation. Digital modeling simulations have been performed for a simulated temporary shelter in different climate conditions incorporating different combinations of electricity generation systems with a fossil fuel-based solution and a PV system, using TRNSYS software. Study results show that the operation of a mobile energy generation unit can operate HVAC systems and generate electricity for temporary shelter occupants in off-grid solutions. The modeling results show that the use of a mobile energy generation unit can significantly reduce diesel consumption in temporary shelters from 54% annually (in Riga, Latvia) to 96 % annually (in Jerusalem, Israel). Furthermore, the output of PV-generated electricity is higher (in most cases) than the consumed electricity amount.

Highlights

  • The modeling results show that the use of a mobile energy generation unit can significantly reduce diesel consumption in temporary shelters from 54% annually to 96 % annually

  • The latest COVID-19 spread has highlighted the importance of mobile energy supply systems for temporary hospitals, mobile testing laboratories, and first aid services, as well as for self-isolation units

  • Deployable sustainable temporary structures provide ventilation and adequate indoor quality and comfort conditions for people who have to be isolated or treated or for those who have to stay in quarantine during an epidemic or pandemic

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Summary

Introduction

The latest COVID-19 spread has highlighted the importance of mobile energy supply systems for temporary hospitals, mobile testing laboratories, and first aid services, as well as for self-isolation units. With regard to temporary shelters, electricity is usually provided by off-grid solutions (diesel fuel generators), which are not a sustainable energy supply because of their dependence on fuel availability. Member States in 2015, the third goal: good health and well-being (by means of comfortable microclimate in temporary camps); the fourth goal: quality education (by providing electricity for lighting); and the seventh goal: affordable and clean energy (by sustainable energy access) These numbers show the need for safer, cleaner and more cost-effe ergy. The mobile energy generation described in this quickly deployable and can be adapted to future shelters/camps, for example, increasing photovoltaic for power generation an inver the electricity needs. The developed energy generation unit described in this of paper of eight photovoltaic batteries for power generation connected to an inverter and electricity air hygiene and occupants’ comfort in temporary shelters.

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