Case was performed at New York Botanical Garden within a cooling system of 3.25 m3, having ethylene glycol (45%) and water as coolant, where DCAS (Department of Citywide Administrative Services) is in charge of the operations and facility management services of the building. DCAS is in charge of the facility management of the premises and was in charge of the introduction and monitoring of the performance period of HTF Compact during the recorded time.

Prior to the introduction of HTF Compact, a full 12 month baseline was recorded in order to make sure a full year operation can be measured. The main objective is to reduce any potential effect related to seasonally dependent variables. This allows to gain confidence in assessing the performance of the nanofluid and demonstrate that product is designed to produce efficiencies and savings at all times without a dependence on seasonal behavior.

HTF Compact was introduced in September 2017 and data recorded for 12 months continuously so that a one to one comparison could be performed against the baseline.

The Measurement & Verification Methodology was utilized following the strict guidelines of the EVO (Efficiency Valuation Organization and its IPMVP (International Performance Measurement and Verification Protocol) Core Concepts from 2014 and a whole facility concept was selected (Option C).

Additionally, the City University of New York was engaged as the independent entity responsible for final endorsement of the savings.

Results were validated independently at CUNY and HTF Compact was endorsed as a nanofluid to be further utilized at other installations in the network. After two years of operation, HTF Compact remains in place with no decrease in its performance allowing continuous savings generation and contributing to sustainability of the installation.