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The design and environmental evaluation of earth-to-air heat exchangers (EAHE). A literature review
Peretti, Clara; Zarrella, Angelo; De Carli, Michele; … - In: Renewable and Sustainable Energy Reviews 28 (2013) C, pp. 107-116
There is a rising interest in heating and cooling systems based on renewable energy sources. Air heating or cooling with earth-to-air heat exchangers (EAHE) is one approach for reducing ventilation heat losses and improving thermal comfort in buildings. A literature research was performed in...
Persistent link: https://www.econbiz.de/10010709350
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Performance analysis of a rotary active magnetic refrigerator
Lozano, J.A.; Engelbrecht, K.; Bahl, C.R.H.; Nielsen, K.K. - In: Applied Energy 111 (2013) C, pp. 669-680
performance (COP) and efficiency of the system was carried out over a range of different hot reservoir temperatures, volumetric … efficiency, η2nd. Losses mapping indicated that friction and thermal leakage to the ambient are the most important contributors … reduction of the cold end thermal parasitic losses are expected to enhance the efficiency of the system. For an operating …
Persistent link: https://www.econbiz.de/10011041176
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Innovative thermodynamic parametric investigation of gas and steam bottoming cycles with heat exchanger and heat recovery steam generator: Energy and exergy analysis
Khan, M. N.; Tlili, I. - In: Energy Reports 4 (2018), pp. 497-506
(6ÈrptÈ12) and flow rate of exhaust gas on the Net work and combined thermal efficiency and exergy loss of exhaust gas … at lower pressure ratio. The combined thermal efficiency increases by 10% with an increase in the turbine inlet … temperature from 1100 to 1500 K. It is found that the combined thermal efficiency increases with all pertinent parameters. …
Persistent link: https://www.econbiz.de/10012651895
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Innovative thermodynamic parametric investigation of gas and steam bottoming cycles with heat exchanger and heat recovery steam generator : energy and exergy analysis
Khan, M. N.; Tlili, I. - In: Energy reports 4 (2018), pp. 497-506
(6≤rpt≤12) and flow rate of exhaust gas on the Net work and combined thermal efficiency and exergy loss of exhaust gas … at lower pressure ratio. The combined thermal efficiency increases by 10% with an increase in the turbine inlet … temperature from 1100 to 1500 K. It is found that the combined thermal efficiency increases with all pertinent parameters. …
Persistent link: https://www.econbiz.de/10011959205
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Thermal performance of a solar water heater with internal exchanger using thermosiphon system in Côte d'Ivoire
Koffi, Paul Magloire E.; Koua, Blaise K.; Gbaha, Prosper; … - In: Energy 64 (2014) C, pp. 187-199
temperatures recorded, mass flow rate and efficiency of collector. These tests are performed for a sunny day and a cloudy day. The …) when, the average heat exchanger effectiveness obtained is 70%. The experimental results show that mean daily efficiency is …
Persistent link: https://www.econbiz.de/10011055037
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Strategic Positioning of the Farm Holiday’s Post-Pandemic Competitive Advantages: Fresh Air and Sunlight
Quendler, Erika; Magnini, Vincent P.; Driouech, Noureddin - In: Zeitschrift für Tourismuswissenschaft 13 (2021) 1, pp. 22-51
Abstract The farm holiday has the potential to rebound faster following the COVID-19 pandemic than many other forms of tourism. This potential is due to two elements that are abundant in the location of holiday farms: fresh air and sunlight. This conceptual paper synthesizes various streams of...
Persistent link: https://www.econbiz.de/10014624561
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Simulation of potential standalone liquid desiccant cooling cycles
Das, Rajat Subhra; Jain, Sanjeev - In: Energy 81 (2015) C, pp. 652-661
LDCS (Liquid desiccant cooling systems), capable of achieving dehumidification and cooling with low-grade heat input, can be effectively used for treating fresh air in hot and humid regions. These can also be operated using non-concentrating solar collectors. The present study is concerned with...
Persistent link: https://www.econbiz.de/10011209524
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Research on Energy Saving Potential for Dedicated Ventilation Systems Based on Heat Recovery Technology
Zhang, Lian; Zhang, Yu-Feng - In: Energies 7 (2014) 7, pp. 4261-4280
Research results have identified the use of heat pipe heat exchangers (HPHXs) for heat recovery as a way to reduce the pre-cooling and re-heating energy. This paper suggests decoupling dehumidification from cooling to reduce energy consumption. The feasible usage and the energy saving potential...
Persistent link: https://www.econbiz.de/10010790942
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Performance analysis of greenhouse dryer by using insulated north-wall under natural convection mode
Chauhan, Prashant Singh; Kumar, Anil - In: Energy Reports 2 (2016), pp. 107-116
A prototype north wall insulated greenhouse dryer has been fabricated and tested in no-load conditions under natural convection mode. Experimentation has been conducted in two different cases. Case-I is when solar collector placed inside the dryer and Case-II is North wall insulated greenhouse...
Persistent link: https://www.econbiz.de/10011937682
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Comparative economic assessment of the energy performance of air-conditioning within the Mexican residential sector
Oropeza-Perez, Ivan - In: Energy Reports 2 (2016), pp. 147-154
This work shows a sensitivity analysis of the economic impact of different energy performances of air-conditioning within the Mexican housing sector. For this purpose, a cooling-load calculator program in function of the indoor temperature is developed. The program also calculates the...
Persistent link: https://www.econbiz.de/10011937687