Thomas Pakenham, 2nd Earl of Longford Silchester in the County of Southampton, in the Peerage of the United Kingdom, which gave him and his descendants an automatic seat in the House of Lords. Lord Longford married Lady Georgiana Emma Charlotte Lygon, daughter of William Lygon, 1st Earl Beauchamp, in 1817. They had several children. Their third son the Honourable Thomas Alexander Pakenham was a rear-admiral in the Royal Navy and the father of Admiral Sir William Pakenham. Their seventh and youngest son the Honourable Sir Francis Pakenham was a diplomat and notably served as Ambassador to Sweden. Longford died in May 1835, aged 61, and was
Evolution from Francis Turbine to Kaplan Turbine speed (N) is directly proportional to Flow (Q) and inversely proportional to Head (H). On the other hand, Francis turbine works on low Specific speeds i.e., high pressure heads. In the figure, it can be seen that the increase in Specific speed (or decrease in Head) have following consequences: Hence, these are the parameter changes that has to be incorporated in converting a Francis turbine to Kaplan turbine. Evolution from Francis Turbine to Kaplan Turbine Francis turbine converts energy at high pressure heads which are not easily available and hence a turbine was required to convert the energy at low