Confidential Health Care Client

Lizardos is the design engineer for an ambitious project of Steam Reduction and Cogeneration for a confidential NYC client. The project will reduce Con Edison steam usage and generate electricity.

The project includes the construction of a pre-engineered roof-top boiler room on the Building that will contain eight (8) natural gas-fired condensing boilers, each rated at 6-MMBTUH, with four (4) dual-fuel boilers also rated at 6-MMBTUH. The roof-top boiler room will be manufactured off-site by the Epsilon Corporation, and erected on-site.

In the 7th Floor Mechanical Room of the Building, two (2) 550kW gas-engine driven electric generators will be installed to produce electricity for on-campus use. The generators will operate in parallel with the Con Edison’s electric service, but will not export power to Con Ed’s grid. A flue-gas to hot water heat exchanger will recover heat from the engine exhaust for heating building hot water.

On the roof of the Building, a second pre-engineered boiler room will be erected containing nine (9) gas-fired condensing hot water boilers also rated at 6-MMBTUH. A second cogeneration plant will be erected on the roof with four (4) 550kW gas-engine driven electric generators similarly configured for on-site power generation for campus use through a parallel arrangement with the Con Ed service. A flue-gas to hot water heat exchanger will be provided to recover engine stack heat.

New hot water piping will distribute heating hot water to mechanical rooms throughout the campus where hot water preheat coils will replace the former steam preheat coils. Adiabatic humidification will replace the former steam humidifiers.