Techno, economic and environmental assessment of a Combined Heat and Power (CHP) system-a case study for a university campus

Universities in the United Kingdom that have installed Combined Heat and Power (CHP) technology are making good moves towards achieving their CO 2 reduction targets. However, CHP may not always be an economical option for a university campus due to numerous factors. Identification of such factors is highly important before making an investment decision. A detailed technical, economic, and environmental feasibility of CHP is, therefore, indispensable. This study aims to undertake a detailed assessment of CHP for a typical university campus and attempts to highlight the significance of such factors. Necessary data and information were collected through site visits, whereas the CHP sizing was performed using the London South Bank University (LSBU) CHP model. The results suggest that there is a strong opportunity of installing a 230 kW CHP that will offset grid electricity and boilers thermal supply by 47% and 75%, respectively, and will generate financial and environmental yearly savings of £51k and 395 t/CO 2 , respectively. A wider spark gap decreases the payback period of the project and vice versa. The capital cost of the project could affect the project’s economics due to factors, such as unavailability of space for CHP, complex existing infrastructure, and unavailability of a gas connection.

[1]  Nima Amjady,et al.  A techno-economic assessment for replacement of conventional fossil fuel based technologies in animal farms with biogas fueled CHP units , 2018 .

[2]  Alessandro Franco,et al.  Optimum sizing and operational strategy of CHP plant for district heating based on the use of composite indicators , 2017 .

[3]  Hongbo Ren,et al.  Multi-criteria assessment of building combined heat and power systems located in different climate zones: Japan–China comparison , 2016 .

[4]  Vida N. Sharifi,et al.  Optimisation of combined heat and power production for buildings using heat storage , 2014 .

[5]  Khuram Pervez Amber,et al.  Development of a Combined Heat and Power sizing model for higher education buildings in the United Kingdom , 2018, Energy and Buildings.

[6]  A. R. Day,et al.  A comparison of combined heat and power feasibility models , 2007 .

[7]  Reinhard Madlener,et al.  Optimal technology choice and investment timing: A stochastic model of industrial cogeneration vs. heat-only production , 2007 .

[8]  Muhammad Anser Bashir,et al.  Development of a Typical Hourly Electricity Consumption Profile for Student Residence Halls Based on Central Tendency Method , 2016 .

[9]  Hasim Altan,et al.  Sector review of UK higher education energy consumption , 2008 .

[10]  Ian D. Williams,et al.  Towards a universal carbon footprint standard: A case study of carbon management at universities , 2018 .

[11]  Sourena Sattari,et al.  Technical and economic feasibility study of using Micro CHP in the different climate zones of Iran , 2011 .

[12]  Khuram Pervez Amber,et al.  Barriers to the uptake of combined heat and power technology in the UK higher education sector , 2015 .

[13]  Afzal S. Siddiqui,et al.  Optimal operation of combined heat and power under uncertainty and risk aversion , 2011 .

[14]  Stephen Egan,et al.  Carbon Reduction Target and Strategy for Higher Education in England:HEFCE refernece 2010/05a , 2010 .

[15]  Syed Kashif Hussain,et al.  Energy Consumption Forecasting for University Sector Buildings , 2017 .