Experimental based energy performance analysis and life cycle assessment for solar absorption cooling system at University of Californian, Merced

Abstract Traditional air conditioning and heating systems in buildings are fossil fuel based energy systems, which take the main responsible for the carbon emissions. In contrast, using solar energy for air conditioning becomes one of the promising approaches to reduce energy consumptions and negative environmental impacts from buildings. University of California, Merced built a test facility to investigate the technology: solar cooling. The solar system has 54 m2 external compound parabolic concentrator (XCPC) solar collectors to drive a 23 kW double-effect absorption chiller. This paper first provides the detailed energy performance analysis of the experiments conducted in August, 2012. The data collected from the experiments shows that the system could provide adequate cooling for a test facility between 11AM to 5PM in both sunny and cloudy days. The daily average collector efficiency is at the range of 36% to 39%. The average coefficient of performance (COP) of the LiBr absorption chiller is between 0.91 and 1.02 with an average of 1.0, and the daily solar COP is approximately at 0.374. In addition to the experimental investigation, a detailed life cycle economic and environmental assessment was also performed by comparing the solar systems to the conventional systems in two types of office buildings at three locations at California. Two different solar cooling system configurations were considered: (i) configuration 1 sizes the area of solar collectors and absorption chiller to meet the peak cooling demand, and uses natural gas as the only backup energy source; (ii) configuration 2 sizes the area of solar collectors and absorption chiller to meet half of the peak cooling demand, and uses natural gas as the backup energy source for the absorption chiller, while incorporates an electrical vapor compression chiller to meet the rest half of peak cooling demand. The annual performance predicts that the systems can achieve the annual solar fraction around 55–68%. And the configuration 2 achieves better life cycle economic and environmental performance than the configuration 1. Specifically, the configuration 2 can achieve lower present worth cost during the entire life span than the conventional systems. And both configuration 1 and 2 can reduce the life time carbon footprint by 35–70%.

[1]  Francesco Calise.  High temperature solar heating and cooling systems for different Mediterranean climates: Dynamic simulation and economic assessment , 2012 .

[2]  Georgios Martinopoulos,et al.  Life cycle environmental impact of a thermosyphonic domestic solar hot water system in comparison with electrical and gas water heating , 2004 .

[3]  H. Mehling,et al.  Solar heating and cooling system with absorption chiller and low temperature latent heat storage: Energetic performance and operational experience , 2009 .

[4]  George O.G. Löf,et al.  Design and construction of a residential solar heating and cooling system , 1975 .

[5]  Georgios A. Florides,et al.  Review of solar and low energy cooling technologies for buildings , 2002 .

[6]  Sirichai Thepa,et al.  Experience with fully operational solar-driven 10-ton LiBr/H2O single-effect absorption cooling system in Thailand , 2008 .

[7]  Suresh V. Garimella,et al.  Multi-objective optimization of sustainable single-effect water/Lithium Bromide absorption cycle , 2012 .

[8]  Berhane H. Gebreslassie,et al.  Design of environmentally conscious absorption cooling systems via multi-objective optimization and life cycle assessment , 2009 .

[9]  Wei Zhou,et al.  Current status of research on optimum sizing of stand-alone hybrid solar–wind power generation systems , 2010 .

[10]  Theocharis Tsoutsos,et al.  Design of a solar absorption cooling system in a Greek hospital , 2010 .

[11]  C. A. Infante Ferreira,et al.  Solar refrigeration options – a state-of-the-art review , 2008 .

[12]  Francesco Calise,et al.  Maximization of primary energy savings of solar heating and cooling systems by transient simulations and computer design of experiments , 2010 .

[13]  Georgios Martinopoulos,et al.  Identification of the environmental impact from the use of different materials in domestic solar hot water systems , 2013 .

[14]  Xiaoqiang Zhai,et al.  Development of solar thermal technologies in China , 2010 .

[15]  Jyotirmay Mathur,et al.  Energy and Environmental Correlation for Renewable Energy Systems in India , 2002 .

[16]  Armando C. Oliveira,et al.  Energy and economic analysis of an integrated solar absorption cooling and heating system in different building types and climates , 2009 .

[17]  M. Renato Lazzarin.  Solar cooling plants: some characteristic system arrangements , 2007 .

[18]  Agis M. Papadopoulos,et al.  Perspectives of solar cooling in view of the developments in the air-conditioning sector , 2003 .

[19]  Ming Qu,et al.  Economic and environmental life cycle analysis of solar hot water systems in the United States , 2012 .

[20]  Tariq Muneer,et al.  Life cycle assessment of built-in-storage solar water heaters in Pakistan , 2006 .

[21]  Berhane H. Gebreslassie,et al.  A systematic tool for the minimization of the life cycle impact of solar assisted absorption cooling systems , 2010 .

[22]  Ming Qu,et al.  A review for research and new design options of solar absorption cooling systems , 2011 .

[23]  Clive B. Beggs,et al.  The use of solar desiccant cooling in the UK: a feasibility study , 2002 .

[24]  Ursula Eicker,et al.  Design and performance of solar powered absorption cooling systems in office buildings , 2009 .

[25]  A. F. Elsafty,et al.  Economical comparison between a solar-powered vapour absorption air-conditioning system and a vapour compression system in the Middle East , 2002 .

[26]  G. Grossman.  Solar-powered systems for cooling, dehumidification and air-conditioning , 2002 .

[27]  Daniel E. Fisher,et al.  Energetic, economic and environmental performance of a solar-thermal-assisted HVAC system , 2010 .

[28]  Riccardo Battisti,et al.  Environmental assessment of solar thermal collectors with integrated water storage , 2005 .

[29]  Todd Otanicar,et al.  Prospects for solar cooling – An economic and environmental assessment , 2012 .

[30]  Xiufeng Pang,et al.  Uncertainties in Energy Consumption Introduced by Building Operations and Weather for a Medium-Size Office Building , 2012 .

[31]  G. P. Hammond,et al.  Integrated appraisal of a Solar Hot Water system , 2010 .

[32]  Darine Zambrano,et al.  Model development and validation of a solar cooling plant , 2008 .

[33]  D.A. Dornfeld,et al.  Development of the Supply Chain Optimization and Planning for the Environment (SCOPE) tool - applied to solar energy , 2008, 2008 IEEE International Symposium on Electronics and the Environment.

[34]  Satish V. Ukkusuri,et al.  Optimizing the design of a solar cooling system using central composite design techniques , 2011 .

[35]  Lili Du,et al.  Multi-objective optimization of integrated solar absorption cooling and heating systems for medium-sized office buildings , 2013 .

[36]  William S. Duff,et al.  Performance of the Sacramento Demonstration ICPC Collector and Double Effect Chiller in 2000 and 2001 , 2001 .

[37]  S. Kalogirou.  Thermal performance, economic and environmental life cycle analysis of thermosiphon solar water heaters , 2009 .

[38]  D. Parra,et al.  Solar space heating and cooling for Spanish housing: Potential energy savings and emissions reduction , 2011 .

[39]  Hongxi Yin,et al.  Model based experimental performance analysis of a microscale LiBr―H2O steam-driven double-effect absorption Chiller , 2010 .

[40]  Xiaoqiang Zhai,et al.  A review for absorbtion and adsorbtion solar cooling systems in China , 2009 .

[41]  Soteris A. Kalogirou,et al.  Optimization of solar systems using artificial neural-networks and genetic algorithms , 2004 .

[42]  K. F. Fong,et al.  Advancement of solar desiccant cooling system for building use in subtropical Hong Kong , 2010 .

[43]  Nelson Fumo,et al.  Solar Thermal Driven Cooling System for a Data Center in Albuquerque New Mexico , 2011 .

[44]  S. Alonso,et al.  Improvement of an existing solar powered absorption cooling system by means of dynamic simulation an , 2011 .

[45]  Georgios A. Florides,et al.  Modelling, simulation and warming impact assessment of a domestic-size absorption solar cooling system , 2002 .

[46]  Francis Agyenim,et al.  Design and experimental testing of the performance of an outdoor LiBr/H2O solar thermal absorption cooling system with a cold store , 2010 .

[47]  Reinhard Radermacher,et al.  Review of Solar Cooling Technologies , 2008 .

[48]  Ming Qu,et al.  Economical and environmental assessment of an optimized solar cooling system for a medium-sized benchmark office building in Los Angeles, California , 2011 .

[49]  Hans-Martin Henning,et al.  Solar assisted air conditioning of buildings – an overview , 2004 .

[50]  Mohammad. Rasul,et al.  Experimental assessment of a solar desiccant cooling system for an institutional building in subtropical Queensland, Australia , 2013 .

[51]  Miquel Rigola Lapeña.  Introduction to LCA , 2012 .

[52]  Franck Lucas,et al.  Experimental investigation of a solar cooling absorption system operating without any backup system under tropical climate , 2010 .

[53]  B. Choudhury,et al.  Review paper on solar-powered air-conditioning through adsorption route , 2010 .

[54]  Valerio Lo Brano,et al.  Life cycle assessment of a solar thermal collector , 2005 .

[55]  Michael Wetter,et al.  A framework for simulation-based real-time whole building performance assessment , 2012 .

[56]  Ruzhu Wang,et al.  Solar sorption cooling systems for residential applications: Options and guidelines , 2009 .

[57]  Umberto Desideri,et al.  Solar-powered cooling systems: Technical and economic analysis on industrial refrigeration and air-conditioning applications , 2009 .

[58]  Lei Wang,et al.  Solar air conditioning in Europe--an overview , 2007 .

[59]  Ming Qu,et al.  A solar thermal cooling and heating system for a building: Experimental and model based performance analysis and design , 2010 .

[60]  F. Rosa,et al.  Solar absorption cooling plant in Seville , 2010 .

[61]  Graeme Maidment,et al.  A novel experimental investigation of a solar cooling system in Madrid , 2005 .

[62]  Xavier García Casals,et al.  Solar Cooling Economic Considerations: Centralized Versus Decentralized Options , 2006 .

[63]  Francesco Calise,et al.  Thermoeconomic optimization of Solar Heating and Cooling systems , 2011 .

[64]  Soteris A. Kalogirou,et al.  Environmental benefits of domestic solar energy systems , 2004 .

[65]  Jesús Martín-Gil,et al.  Life Cycle Analysis of a Thermal Solar Installation at a Rural House in Valladolid (Spain) , 2008 .

[66]  Ruzhu Wang,et al.  Experimental investigation of a mini-type solar absorption cooling system under different cooling modes , 2012 .

[67]  Francisco J Batlles,et al.  Environmental assessment of the CIESOL solar building after two years operation. , 2010, Environmental science & technology.

[68]  Ruzhu Wang,et al.  Performance prediction of a solar/gas driving double effect LiBr–H2O absorption system , 2004 .

[69]  Rabah Gomri,et al.  Investigation of the potential of application of single effect and multiple effect absorption cooling systems , 2010 .