Ormandy Supply Domestic Hot Water Generator for a Manchester College
Ormandy Rycroft was asked to come up with a value engineered solution for a college in Manchester which required a domestic hot water package, fed by air source heat pumps.
The original solution required 2 dedicated, high temperature heat pumps capable of temperatures in excess of 600 degrees Celsius to generate domestic hot water.
As this was a small part of the college we were asked for a solution to take advantage of the lower temperature heat pumps used for heating, then use a smaller duty unit to boost the temperature to enable the generation of water at 600 degrees Celsius to be used for domestic hot water.
The solution
The solution Ormandy put forward was a packaged system that included both a plate heat exchanger for the lower grade input as well as an in-line Electric Flow Heater to boost the water temperature to the 600 degrees Celsius, which instantaneously enabled the system to operate effectively and recover in the required time scale.
This removed the requirement for the 2 higher grade heat pumps and took advantage of the heating heat pumps that were already available on the project.
This resulted in the removal of the dedicated high temperature heat pumps associated with the hot water system, saving a significant cost and space.
The electric heater will only be used for top up, with low grade heat fully utilised due to the pipework and control arrangement
This compact solution met the space constraints.
Evoplate Brazed Plate Heat Exchanger