Corac Group's thermal technologies subsidiary has received an order of £0.9m for six heat exchanger units from an unnamed international engineering firm.The project is part of a five-year improvement programme and will replace exchangers to a UK downstream facility by 2015.HHT, a heat exchanger design, manufacture and repair solutions company, has secured £1.8m in new orders during the first half of the year, including an energy generation project and an energy-from-waste application, which consists in generating energy from the incineration of waste.Corac's chief executive Phil Cartmell said: "The recent number of new orders provides us with great confidence for the rest of this year and a springboard for further success in 2015."The company's shares were up 3.86% to 7.4p on Tuesday at 14.33.JF