This month’s Facility File will focus on the Back2Basics test on a hospital capital project to furnish and install a combined heat and power (CHP) co-generator of electricity and use of engine coolant heat rejection directed to the facility’s new pre-heat domestic hot water storage tank. The hospital shall pre-purchase a CHP generator and make the CHP manufacturer’s guidelines for installation and O&M instructions part of the basis of design.
The CHP application is described in Chapter 7 (Combined Heat and Power Systems) of the 2016 ASHRAE Handbook — HVAC Systems and Equipment and Chapter 51 (Service Water Heating) waste heat applications in the 2019 ASHRAE Handbook — HVAC Application. It’s also recommended that the D-B team review the CHP unit manufacturers’ own guidelines for engine room ventilation and waste heat applications.