Module 53 June 2013
1. What maximum size of CHP would normally be considered as 'small scale'
?
a. 2 kWe b. 5 kWe c. 500 kWe d. 1 MWe e. >1 MWe
2. What does the article propose is the potential saving in primary energy from employing CHP? a. 30% b. 35% c. 40% d. 45% e. 50%
3. What is the approximate 'rule of thumb' UK application? annual minimum
operating period for CHP to provide an economic solution in a 'standard'
a. At least 1,000-1,500 hours per annum b. At least 2,000-2,500 hours per annum c. At least 3,000-3,500 hours per annum d. At least 4,000-4,500 hours per annum e. At least 5,000-5,500 hours per annum
4. If fuelled by biogas from anaerobic digesters, what is the maximum thermal output of CHP that would currently attract funding under the UK RHI? a. 0 kWth (it is not eligible) b. 2 kWth c. 20 kWth d. 200 kWth e. 2 MWth
5. Which of these is a principal reason for using thermal storage with CHP? a. To provide 'back-end protection' b. To ensure that associated condensing boilers operate effectively
c. To allow the CHP to run effectively for the maximum period
d. To make the economic modelling more straightforward e. To simplify legionella protection
62 CIBSE Journal June 2013
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